Field_newdate Class Reference

Inheritance diagram for Field_newdate:

List of all members.

Public Member Functions
	Field_newdate (uchar *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg)
	Field_newdate (bool maybe_null_arg, const char *field_name_arg)
enum_field_types	type () const
enum_field_types	real_type () const
enum ha_base_keytype	key_type () const
type_conversion_status	reset (void)
type_conversion_status	store_packed (longlong nr)
longlong	val_int (void)
longlong	val_time_temporal ()
longlong	val_date_temporal ()
String *	val_str (String *, String *)
bool	send_binary (Protocol *protocol)
int	cmp (const uchar *, const uchar *)
void	make_sort_key (uchar *buff, uint length)
uint32	pack_length () const
void	sql_type (String &str) const
bool	zero_pack () const
bool	get_date (MYSQL_TIME *ltime, uint fuzzydate)
Field_newdate *	clone (MEM_ROOT *mem_root) const
Field_newdate *	clone () const
Protected Member Functions
ulonglong	date_flags (const THD *thd)
bool	get_date_internal (MYSQL_TIME *ltime)
type_conversion_status	store_internal (const MYSQL_TIME *ltime, int *error)
Static Protected Attributes
static const int	PACK_LENGTH = 3

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Member Function Documentation

Field_newdate* Field_newdate::clone

(

MEM_ROOT *

mem_root

)

const [inline, virtual]

Makes a shallow copy of the Field object.

Note:

This member function must be overridden in all concrete subclasses. Several of the Field subclasses are concrete even though they are not leaf classes, so the compiler will not always catch this.

Parameters:

mem_root

MEM_ROOT to use for memory allocation.

Return values:

NULL	If memory allocation failed.

Implements Field.

Field_newdate* Field_newdate::clone

(

)

const [inline, virtual]

Makes a shallow copy of the Field object.

Note:

This member function must be overridden in all concrete subclasses. Several of the Field subclasses are concrete even though they are not leaf classes, so the compiler will not always catch this.

Return values:

NULL	If memory allocation failed.

Implements Field.

ulonglong Field_newdate::date_flags

(

const THD *

thd

)

[protected, virtual]

Flags that are passed as "flag" argument to check_date(), number_to_datetime(), str_to_datetime().

Flags depend on the session sql_mode settings, such as MODE_NO_ZERO_DATE, MODE_NO_ZERO_IN_DATE. Also, Field_newdate, Field_datetime, Field_datetimef add TIME_FUZZY_DATE to the session sql_mode settings, to allow relaxed date format, while Field_timestamp, Field_timestampf do not.

Parameters:

thd

THD

Return values:

sql_mode

flags mixed with the field type flags.

Reimplemented from Field_temporal.

bool Field_newdate::get_date_internal

(

MYSQL_TIME *

ltime

)

[protected, virtual]

Low level function to get value into MYSQL_TIME, without checking for being valid.

Implements Field_temporal_with_date.

void Field_newdate::make_sort_key	(	uchar *	buff,
		uint	length
	)		[virtual]

Writes a copy of the current value in the record buffer, suitable for sorting using byte-by-byte comparison. Integers are always in big-endian regardless of hardware architecture. At most length bytes are written into the buffer.

Parameters:

buff	The buffer, assumed to be at least length bytes.
length	Number of bytes to write.

Implements Field.

type_conversion_status Field_newdate::store_internal	(	const MYSQL_TIME *	ltime,
		int *	error
	)		[protected, virtual]

Low level routine to store a MYSQL_TIME value into a field. The value must be already properly rounded or truncated and checked for being a valid TIME/DATE/DATETIME value.

Parameters:

IN	ltime MYSQL_TIME value.
OUT	error Error flag vector, set in case of error.

Return values:

false	In case of success.
true	In case of error.

Implements Field_temporal.

type_conversion_status Field_newdate::store_packed

(

longlong

nr

)

[virtual]

Store a temporal value in packed longlong format into a field. The packed value is compatible with TIME_to_longlong_time_packed(), TIME_to_longlong_date_packed() or TIME_to_longlong_datetime_packed(). Note, the value must be properly rounded or truncated according according to field->decimals().

Parameters:

nr	temporal value in packed longlong format.

Return values:

false	on success
true	on error

Reimplemented from Field.

longlong Field_newdate::val_date_temporal

(

)

[virtual]

Returns DATE/DATETIME value in packed longlong format. This method should not be called for non-temporal types. Temporal field types override the default method.

Reimplemented from Field_temporal_with_date.

longlong Field_newdate::val_time_temporal

(

)

[virtual]

Returns TIME value in packed longlong format. This method should not be called for non-temporal types. Temporal field types override the default method.

Reimplemented from Field_temporal_with_date.

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The documentation for this class was generated from the following files:

• field.h
• field.cc